body {
  padding: 0;
  margin: 0;
  height: 100%;
  font-size: 15px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  font-weight: normal;
  color: rgba(0, 0, 0, 0.87);

  box-sizing: border-box;
}
